Is there any way to help prepare oneself for the Earth Science regents?”
he concept of density is fundamental to understanding many aspects of Earth Science. Density is a derived unit. That is, the density of a substance must be calculated (or derived) from other measurements. Density is calculated by using the mass (grams) and volume (mL or cm3) of a given sample. Mass is determined by using a balance and volume of a fluid or solid can be determined by using a graduated cylinder. In this course, the equation for density is shown on p. 1 of the Earth Science Reference Tables as: D = m/v, in which D represents density; m represents mass; and v represents volume. Some of the other sciences and engineering disciplines make use of a slightly different form of the equation for density. Solutions to problems that require the use of the density equation should include the corresponding metric system (or SI)units. Density is considered an intrinsic property. That is, the density of a material at a specific temperature and pressure remains the same regardless of the
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